Charlotte is a city in Atascosa County, Texas, United States. The population was 1,715 at the 2010 census. It is part of the San Antonio Metropolitan Statistical Area. The town is named for Charlotte Simmons, the daughter of Dr. Charles Simmons, who aided in the development of Atascosa County. This is 52 miles (84 km) south of downtown San Antonio.According to the United States Census Bureau, the city has a total area of 2.0 square miles (5.2 km2), all land.